Home / 3,180.54-4,388.13-1,922.07

Finding the Fourth Proportional to 3,180.54, 4,388.13 and 1,922.07

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Solution

The fourth proportional to 3,180.54, 4,388.13 and 1,922.07 is: 2,651.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,180.54 : 4,388.13 = 1,922.07 : x
  2. Step 2: Convert to fraction form
    3,180.54/4,388.13 = 1,922.07/x
  3. Step 3: Cross multiply
    3,180.54x = 4,388.13 × 1,922.07
  4. Step 4: Simplify right side
    3,180.54x = 8,434,293.03
  5. Step 5: Solve for x
    x = 8,434,293.03/3,180.54
  6. Step 6: Final answer
    x = 2,651.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.